DTS file memory node expalnation for imx6qdl-sabresd board.

[bandarulavanya]

Hi all,

i am new to the dts file can any please tell me the about memory node in dts file.

I have like below in imx6qdl-sabresd.dts file .

memory {

                reg = <0x10000000 0x40000000>;

        };

here what is 0x10000000 and 0x40000000 . where i will get these values.

Thanks

Lavanya

[aravinthkumarja]

Hi bandarulavanya

0x10000000 -- > Memory Start Address

These details you can get in your Processor Reference Manual (Chapter 2 Memory Maps).

Regards,

Aravinth

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[bandarulavanya]

Hi aravinthkumar jayaprakasam,

yes it is ddr start address but what about second argument.

Thanks & Regards,

Lavanya

[igorpadykov]

Hi Lavanya

AN5125 Introduction to Device Trees gives explanation of dts entries,

seems this is size

http://cache.nxp.com/files/32bit/doc/app_note/AN5125.pdf

Best regards

igor

[bandarulavanya]

Hi igorpadykov ,

Thanks i will follow that link.

Thanks & regards,

lavanya

[aravinthkumarja]

Hi bandarulavanya​,

0x40000000  --> End address

Upto this address we can use it.

Regards,

Aravinth

[bandarulavanya]

Hi aravinthkumar jayaprakasam,

thanks.

Thanks & Regards,

Lavanya